Automatic sanding or polishing machine



Jim. 19 1932. A

' AUTOMATIC smame (JR-POLISHING momma 5 Sheets-Sheet 1 Filed April 24, 19.30

' 5 Sheets-Sheet 2 mN n A. s. KUX

AUTOMATIC SANDING on POLISHING umcamn Filed April 24, 1930 0 111 III v o h \MN WI kl; IIIII H hi 1H1 \H 1 kw b R .0 o W MK b A R b hb Mb w i a QB 11. NN| M. N 1: 1 1 1| \1 5 QA NE 1 ii Jan. 19, 1932.

{Q [H I I G wh [IL Jan. 19, 1932. A. s. KUX

AUTOMATIC SANDING OR POLISHING MACHINE Filed April 24, 1930: 5 Sheets -Sheet 3 Jan. 19, 1932. A. s; KUX

AUTOMATIC SANDING OR POLISHING MACHINE Filed April 24, 1930 '5 Sheets-Sheet 4 Jan. .19, 1932. A. s. KUX

AUTOMATIC smnme OR POLISHING MACHINE.

5 Sheets-Sheet 5 Filed April 24, 1950 x Z n w w w WY L mm NwN 6 5 Qm 1 Q 10 1. b\ Z mm, J my WM, Q a %N T 4? .27 01w n. m R a, g m rm.

f UNITE. STATES iii - invention, and in which Figure 2 is a left hand end Patented Jan. 19, 1932 o i ALBERT s. eg cor err 10sec, ILLINOIS;

. AUmoMArrc SANDING R Pouss n; A

we Application filed April 24,

This invention relates to improvements in sanding or polishing machines particularly adapted though not necessarily-limited in its use for sanding or polishing saddlelseats for chairs, and one of the, objects of'the invention is to provide an improved machine of this character by means of the use ofwhic'h a pluralityof seats may besimultaneously sanded or polished, the operation being controlled by a master pattern upon a table which has two distinct feeding movements, one a comparatively rapid forward and back movementand the other a slower movement in a direction transverse 'to the first-recited direction of movement. V i

Afurther object is-fto provide-improved means controlled bylthe; master patternmechanism which tends normally to move the work and the sanding elements into operative engagement. 7 1 g y r e To the attainment of'these ends nd the accomplishmentof other new and useful objects as will appear, the inventionjconsis'ts in the features of novelty in substantially the construction, combination and arrangement of the several parts, hereinafter more fully described and claimed and shown in, the accompanying drawings illustrating this Figure 1 is a side elevation ofa-ma'chine of this character constructed in accordancewith the principles of this invention. a

elevation of Figure 1. V r

Figure 3 is a detailsectional view takenonline 33, Figure 1. j V 7 i.

Figure 4' is an enlarged detail sectional view taken on line H, Figure 3, with parts omitted. I V a Figure 5 is a detail sectionaloview taken on line 55, Figure 3, with parts omittedl, Figure 6 is a top plan view of the WOI'kZ supporting carriage with parts omitted, parts 7 in section and with parts broken away. f H

Figure 7 is a detail sectional view taken on line 77,-Figure 6. 1* i Figure 8 is a detail sectional view taken on line 8-8,Figure1. 7' Referring more particularly to the drawings the numeral 10 designates a supporting connected by 1930. Serial 101446 21.

base provided with uprights llsupporting a crossbeainfor member 12, all arranged preferably adjacent one end of theibase, and at the other end of the base is arranged a supplement-alf supporting structure 113.

Mounted upon the support 13 aretracks '14 wh-ichgextend lengthwise thereof, and reciprocable upon v the.-;tracks 141 acarrier 15 having wheelslG thatjmove upon the'tracks.

: engage and travel upon the tracks 17. I .;The carriage-l8 is adapted-for bodily forward and backward movement withflthe car 1 rier-;l5 andis also adapted for movement along the tracks 17 in directions transverse to v .f

the direction of travel ofthecarrier 15.

The carrier 15' is adaptedto be reciprocated inany desired or suitable manner preferably by means of a swinging lever 20 pivotally mounted by one end as at 21, preferably mounted or supported bythe cross bars or beams 12. r c To the other end of the lever 20 is pivotally connectedas at 22 a link 23 having a yoke 24 v I at the forward end thereof, and the yoke is means of a pivot 25 with the carrier 15. a i

Pivotally mounted .upon a" suitable sup! 3 port is] a-shaft126 connectedto which is a inthe lever 20, so that when the shaft 26 is r I rotated a swinging movement will be .im

parted ,to the lever 20, which in turn will rei i ciprocatethecarrier 15 upon the tracks 14.

In order to vary the extent of movementof thevcarrier 15 theblock29 is adjustable towardand-away from the pivot 21 of, the

lever, 2'0., 'A'ny suitable means may be pro- 2 vided forthat purpose, but a simple and efficient meansembodies a screw31 to, which.

. is connected agear 32. Meshing withthe' gear 32 isa gear and connected to the gear 33 is a. hand-wheel 34, by the operation of which latter it will bemanifest thatthe screw moved toward or away from the pivot 21,

is driven by means of a belt 43 that passes over a pulley 44 on a shaft 45, the shaft 45 being rotated preferably by means of a belt 46 that passes over a pulley 47 anda'lso over a pulley 48 on the shaft of a motor 49.

VV-hen the clutch 87 is'in operative engage-' ment with the clutch of the pulley'38 the carrier 15 will be rotated, but when thefclutch is rendered inactive the carrier'will also be renderedin'active. r a

Any suitable means may; be provided for shifting the clutch 87 by hand such as a lever 50 arranged at the front of the machine and connected by means of a link 51 with a lever 52 pivotally supported intermediate its ends as at 53, the other end'of the lever 52 bein connected with the clutch member 37. 1 spring 54 tendsnormally'tomove the lever 52 in a direction to connect the shaft 36 with the power mechanism. 1 Connected with the carriage 18 is a wor supporting table 55 secured thereto at one edge by means of suitable hinges 56, and the work supporting table 55 is of a length and width to support a plurality of pieces of work 57 and a pattern 58, the work and patterns being respectively secured to the work support between suitable clamping members 59-60. r

f The work supporting table 55 is yieldingly mounted with respect to the carriage 18 and for that purpose levers 61 are provided which are pivotally mounted intermediate their respective ends as at 62 upon the carriage 18. One end of one of the levers is pivotally connected as at 63 with a bracket 64secured adj acent one end of the work supporting table 55, and the other end of the lever 61 is similarly mounted and is connected with the work suppporting table adjacent the other end thereof.

The free ends of the levers 61 are pivotally connected as at 65 to a yokemember 66, the

stem of which member passes through a suitable bearing 67 on the carriage 18 and has adj ustably mounted 011 the free end thereof a nut or collar 68. A spring 69 is interposed between the nut 68 and the bracket or hearing 67.and the spring tends normally to yieldingly support the work supporting table 55.

Mounted upon the uprights 11 are brackets 70 and pivotally supported by each of the brackets by one end as at 71 is an arm 72, and each of these arms is preferably movable between adjustable stops 73. The two arms are preferably connected by means of the bar or rod 74 so thattliey will move in unison and carried by the forward ends Of r the arms are bearings 75, in which ashaft 76 is j ournaled.

Telescoping with each end of the shaft 76 inthe bearings 75 are sleeves 7 5 to which latter are connected studs 75 eccentrically arranged with. respect thereto and upn which studs" the sanding wheel or pulley 77 is mounted so that byrotatively adjusting the studs 7 5 a bodily adjustment of the sanding wheel or pulley with respect to the master wheel 78 may be obtained.

Such adjustment of the pulley or wheel 77 may be obtained in any desired or suitable manner such as by means of a worm and wormgear connection 7 5'7 5 and operated in any suitable manner.

Connected with the shaft 76 preferably adjacent each of the arms 72, to rotate therewith, arepulleys 77, the studs of which are eccentrically mounted so that the sanding wheel or pulleys may be adjusted with respe'cttothe shaft 76, and connected with the shaft 76 to rotate therewith, preferably intermediate the pulleys 77 is a master wheel 78; The eccentric bearings of the pulleys 77 permit the latter to be adjusted with respect to the master wheel 78; V

Passing over each of the pulleys 77 is an endless sanding orabrading element 79, each of which passes over a pulley 80 con nected with the shaft 45.

Any suitable means may be provided for maintaining the endless sanding elements 79 taut, such for instance as a belt tightener embodying a pulley 81 mounted upon one end of an arm 82 that'is pivotally supported as at 8.3 upon a fulcrum 84. On the free end of the arm 82 is adj ustably mounted a weight 85, and the weight is such that it will hold the pulley 81 against the sanding element 79 and maintain the latter taut.

The arms 72 with the supporting pulleys and the master wheel 78 are adapted to be raised and lowered about the pivot 71 by adjustment of the stops 73, and in the present form of the invention when so adjusted the arms 72 will be held against further adjustment. The arms 7 2 are so adjusted that the master wheel 78 will contact with the surface of the pattern 58 on the work supporting table and when so positioned the pulleys 77 will cause the portion of the endless flexible abrading element 79 which passes thereover to be held in face of the work 57.

The sanding elements 7 9 are continuously operated when the machine is in operation as the shaft 45 will be rotated from the motor 49, andreciprocation is imparted to the calcontact with the sur-s 'and the connecting 1ink'28 the carrier 15.

later described.

supporting table to cause the work, .57 to be moved-backand forth under the respective pulleys 7 7 and the pattern. 58 to be moved back'and forth under; the master wheel or pulley 7 8 and by reason of the cranklmovement: 27 and link 28 together with the lever willbe given a forward and backward movement, the extentof which may be varied by adjusting theblock 29 on the lever 20, and as-the carrier 15 is reciprocated with respect to the pulleys 7 7 and the master wheel 78, it will be manifest that during the reciprocating movement of the carrier.- the sanding element will be moving, over-the surface of the with respect to the carriage 18, there is provided a threaded shaft 86 (seep'articularly Figures 6 and?)v which passes through' af threaded bearing 87 on the carriage 18. v

' passing over a pulley Connected to the shaft 86 is a gearwheel. 88 which meshes withtwo. gear/wheels 89 loosely mounted'upon a shaft-90, and'the shaft 90 receivesitsmotion preferably. from the shaft 36 through the medium of a belt 90% onthe shaft 36 and also over-a pulley 9O onthe shaft 90. Each of the gears 8911s provided'witha clutch face 91, and a clutch element 92 is arranged intermediate the gears 89 on the shaft 90 and is keyed-thereto.

I This clutch 92 is adapted to be shifted so as to connect either of the gears 89to the shaft 19, according to the direction of shifting movement soas to change the direction of rotation of the threaded jshaft86. e

' The clutch member 92 is adapted to be shifted by means of a lever 93 through the medium of a yoke '94. i The end of thelever 93 is connected to a rod 95' having a collar 96 secured thereto and the rod 95 passes through a bearing 97, a spring 98 being interposed between the collar 96 and the bearing 97 which tends to move the clutch mem ber 92 to a position intermediate the clutch faces-91 of the gears 89.

l/When the lever 50 is in a position to cause the clutch 37 to be active, the lever will stand between arms 99 of a rod 100ewhich is con- 65 ures 2 and 6) by means of an extension 101 so nected with the rod95 (see particularly Figthat when the work supporting table 55 reaches a predetermined distance in either direction in its travel transverse to the direction of reciprocation of the carrier one of the arms or projections 99 will engage the lever 50 and shown how the clutch 37' can the lever will cause the rod-9 5. to rockthe I p lever 93 and shift the clutch member 92.. The

lever- 50 is adapted for-a limited degree of lateral movement so as to prevent injuryrto,

the parts and to form a cushion between the lever and the work supporting,.-table. To

"that end the lever is preferablyprovided with a joint formed by means of a ro'd102 connected with the rod51, through vthe medium of: an v arm "1 03 (seeparticularlyr Figures 2 and B).

The leverisflpivotally supported as at 104' f upon the arm 103'andpis'providedwith apin 105 extending laterally beyond the sides thereof. 5 This'pin passes through a suitable 80 bearing 106 and also the endof thearm' l03, and coiled springslOK are arranged on each side of the lever so as to permit of'a limited degree of lateralmovement of the lever with- I out affecting the pivotal movement of the lever 50in a direction to'rock the shaft 102.

a It vi ill thereforeibe manifest that-as the work supporting? carriage approaches the 93wi ll be,shiftedtocorrespondingly shift the it clutchjmen'1ber'92 and thereby reverse the ro-I continuously reciprocated during the operation of the 1nachine, as before said, until the clutch 37 isrelea'sed; It has already; been be manuallyre- I leased by thelever gg limit of its travel injeither direction thelever 9t)- tation: of the shaft 86. f Thecarrier '15will be In order to automatically shift the 5O I at the time when the work supportingcarrier 55 has about reached the limit of its move- I ment transverse'to the direction of "reciproccation of the carrier-l5 'arms or PIOJGCtlOIlS' the carriage 18, being adj-ustably held inposi- 1 108areadjustably secured or mounted 'upon -v tion by means of a-slot 1'09 and bolt 'conn'ection 110. 'By'loosening the bolts and adjust- Q ing the prQjCtions {108, it willbe manifest thattheys may be set in any desired position: I

As soon asthe work supporting table 55 reaches a positionthat'one of these armsor Projections 108 is in al-inement with'thezlever i 50' upon the-backward -movement of 'thef work supporting table, it will be manifest that upon the forward movement of the work' supporting table the respective arm or pro jectiont'108 (see particularly Figureyt) will to release the clutch 37. 1 lt will therefore be p v this improved construction there-will be a bodily reciprocation of the carrier fand' the engage the lever 50 andthereby'shift the same manifest that with i worksupporting table forwardly and backwardly, *which reciprocation maybe c011 1 trolled at will. Furthermore, there will be'a continuous feeding movement of the work supporting table with respect to the carriage I in a direction transverse to the bodily recip IOCa'tIDgKIIIOVBInGIItofthe carriage, and the work supporting table, until the work supporting table reaches the-limit of its transi verse movement, at which time the direction 7 1" of rotation'of the threaded shaft 86 is reversed and the work supporting table will be given a continuous movement in the opposite contact with the pattern 58, thereby controlling ,and guiding the pulleys 7'7 and the sanding elements 7 9 passing thereover, which operate upon the work 57.

The work supporting table is yieldingly held in engagement with the sanding elements is also the pattern 58 with the master wheel .78 and will insure accurate work upon the pieces of work 57.

'lhe'eccentric mounting of the pulleys or wheels 77 permits of a fine adjustment of the pulleys with respect to the work.

This cons uction also permits of the operation upon a plurality of pieces of. work at the same time by the. use of'a single pattern, rendering it possi is for a single operator to operate and attend to several machines at th same time;

While the preferred'form of the invention has been herein shown anddescr bed, it is to beunderstood that various changes may be made in the details of construction and in the combination and arrangement 'of'the several parts, within the scope of the claims, without departing from the spirit of this invention. VVllat is claimed as new is 1- r 1. A sanding machine embodying a work supporting table, means securing a plurality of pieces of work thereto, one of said pieces constituting a master pattern, a master roller co-operating with and movable over said pattern, means for imparting two difierent d1- rections of movement to said table one transverse to the other, pulleys rotatable with said master roller and'individual totheother pieces of work, endless sandingelements individual to the said pulleys, and means for imparting a traveling movement to said sanding elements with relation to their respective pieces ofwork. I

2. A sanding machine embodying a work supporting table, means securing a plurality of pieces of work thereto. means for imparting a comparatively rapid forward and backward movement to the table, means for imparting a slower feeding movement to the table in'directions transverse to the direction of the first recited feeding movement, a

master roller adapted to engage and move across one of said pleces of work, the latter constituting a pattern,'traveling sanding elements movable with said roller and indi to.

vidual to the remaining pieces of work, and means for actuating the sanding elements with respect to the individual pieces of work.

8. A sanding machine embodying a work supporting table, means securing a plurality of pieces of work thereto, means for impartingacomparatively rapid forward and backward movement to the table, means for imparting a slower feeding movement to the table in directions transverse to the'di'rection of the first recited feeding movement, a master roller adapted to engage and move across one of said pieces of work, the latter constituting a pattern, traveling sanding elements movable with said roller and individual to the. remaining pieces of work, means for actuating the sanding elements with respect to the individual pieces of Work, andmeans individual to the said feeding means and responsive in their operation to the operation of the said table for controlling the said feeding means.

a. In a sanding machine, a carriage, a work support .mounted thereupon, a'sanding element disposed above the Work support, a master roller'also disposed above the work support, means tending normally to move the work support towards the'sanding element and said roller, a pattern on the support and with which the said roller co-operates, means for imparting a forward and backward movement to the carriage, means for imparting a transverse movement to the carriage, means for actuating the sanding element,and means whereby the pressure of the master roller upon the patte'rnwill control the degree. of pressure of the sanding element upon the work.

5. In a sanding machine; a carrier, means mounting the carrier for a forward and backward reciprocating movement, means for varying the extent of such movement, a work supporting carriage mounted upon the said carrier for bodily movement therewith and for movement with respect thereto in directions transverse to the reciprocating movement, means for automatically changing the direction of movement of the said-carriage with respect to said. carrier, means securing a plurality of pieces of work upon the carriage, sanding elements above the work and individual thereto, a pattern, and a master Wheel cooperating with the pattern and controlling the bodily movement of the sanding elements.

6. In a sanding machine, a carrier, means mounting the carrier for a forward and backward reciprocating movement, means for varying the extent of such movement, a work supporting carriage mounted upon the said carrier for bodily movement therewith Y eating moi ements, means for imparting tne sanding elements, and means tending normally to move the sanding elementsv and the work one bodily toward the other.

7. In a sandinmmachine a carrier means L b c z mounting he carrier for a forward and- .backward reciprocating movement, means for varying the extent of such movement, a work supporting carriage mounted upon the said carrier for bodily movement therewlth and for movement with respect thereto in di-.

reotions transverse to the reciprocating movement,'means for automatically Chang ing the direction of movement of the said carrlage with respect to said 'carrler, means securing a plurality of pleces of work upon the carriage, sanding elements aboveithe work and individual'thereto, a pattern,

master wheel co-operating with the patte'rn and controlling the bodily movement of the sanding elements,'means mountingthe work carriage upon said-,carrier for bodily movement towards the sanding elements, and means tending normally to hold the work and sanding elements yieldingly in engagement.

8. In a sanding machine, a reciprocable carrier, means for reciprocating the carrier, a work supporting table mounted upon the carrier for bodily movement therewith and for movement with respect thereto in directions transverse to the direction of reciprosaid transverse movement to the work supporting table, means for. automatically reversing the direction of thelast said movement, sanding elements above and independent of said table, means for actuating the,

sanding elements, means yieldingly holding the work and sanding elements in' engagement, means for holding a pattern upon said table, and a master wheel movable oversaid pattern for controlling the sanding elements.

9. In a sanding machine, a reciprocable carrier, a work carriage bodily movable with and with respect to the carrier, means for imparting to the carriage movements transverse to the direction of reciprocating movement of the carrier, means for securing to the carriage the work and a pattern, sanding elements individual to the work, a master roller co-operating with the pattern for controlling the position of the sanding elements with respect to the work, and means for actuating.

, engagement 'eoi a aiiedit j theinaaefidnr aildfp'aa ia for holding the s'aiiding elements and work in n ement-x Li ,11; In] -;sand'ng machine "la reciprocable carr1er,-means fQIiI6ZlPIQC2LlQ1I1g the carrier,

a work supporting carriage movable fvvith and, with respect to the carrier, means forilnparting f al movement to the; carriage transverse to the direction of reciprocationot the latter and at a slower, rate of speed tlian the speedot said reciprocation, means forgautomatically controlling the movement of the carrierand of the carriage with respect to the carrier, sandingelements above the car ria'ge, means tonactuating theisanding ele ments, and a master roller cooperatingwith a master .form for controlling the; position of the work v p t p respect to'the other'g:

' 12. In a: and machine a .reciprocablef carrier}; I means f o r reciprocatingthe carrier, a work I supporting i carriage movable with and with'respect' to the carrier, means torimparte ing' a movement to the carriage transverse to the, directionof reciprocation of the latter and a lslower rate of speed than the speed of said reciprocation, means for automatically controlling the movement of thecarlrier and of the carriage with respect to the ,carrier', sanding v elements above the carriage, means for actuating'the sanding elements, a master roller C -operating with a master form :for controlling the ositio pf the work and said sanding elements one' with respect to the other, a work holder .upon the carriage, and

imeans tending normally to move thework holder with'respect tothe carriage and into ments.

, 13. sanding machineareciprocable carrier, means for reciprocating the ,carrier,

a work support ng-carriage movable with r and withfrespect to the, carrier, means for with therespective sanding (ale;

and said sandingelements one with I imparting a movement to the carriage trans-, verse tothedlre'ction .ot reclprocation of the,

latter and at a' slower rate of speed than thef speed offsaid reciprocation, means for automat'i'cally controllingthe movement of the carrieriandof the carriage withrespect to the carrier, sanding elements above the car-s riage, means for actuat ng the sanding elements, a master roller co operating -j with a masterj form forvcontrolling the position of the work andsaid sanding elements one with respect to the other,-awork holder upon the carriage, and means controlled by the master rollernndfoper'ating to move thework and sanding velements one with respect to the other and intoengagement with each other;

7 14. In a sanding machine areCiprOcable carrier, means forreciproca-ting the carrier,

a work supporting carriage movable'with' and with respect to the carrier, means for im-v parting a movement to-the carriage-transverse to the direction of reciprocation of the latter and, a slower rate of'speed than the speed of said reciprocation, means for auto- 7 matically controlling the movement of the carrier and ofthe carriage with respect tothe carrier, sanding elements above the carriage,

' means for actuating the sanding elements, a master roller co-operating vwith a master form for controlling the position of the work 7 and said sanding elements one with respect 10 to the other, and means individual to'the carrier reciprocating" means and the means for moving the carriagewith-respect to the car rier for varying theextent ofsuch movement at will.

i 15. A sanding machine embodying a pivotally mounted work supporting table, means for securing workithereto, a master pattern alsosecured to the table, amaster Wheel 00- operating with said master pattern, means 2 for imparting movements to said table in directions intersecting each other, a sanding element in substantially axial alinement with the said master wheel, and means for impart ing" a traveling movement to said sanding 5 element. v 1

16. A sanding-machine embodying a pivotally mounted worksupporting table, means for securing work thereto, a master pattern also secured to the table, a naster'wheel coso operating with said master pattern, means for imparting movements to said table in directions intersecting each other, a sanding element in substantially axial alinement with the said master wheel, means for imparting a traveling movement to said sanding element, and means mounting said sandingelement for adjustment in directions-transverse to htheli axis of and with respect to said master w ee 40 17. A sanding machine embodying a work supporting table, means for securing the work to the table, means for securing a master pattern to said table, a master roller co-operating with and movable over saidmaster pattern, means for imparting two different directions of movement to said table- 'one transverse to the other, a support for abrading materialrotatable with said master roller, abrading material upon saidisupport and operating upon the Work, and means for imparting a travelingmovement to said sup port and abrading material with relation to the work.

In testimony whereof I have signed my 5 name to thisspecific tion, 'on'this7th day of April, A. D. 1930, ALBERT s. 

